Part 7 – Putting It All Together (Final Class)

Assemble the full FileTransferServer with configuration, routes, limits, callbacks, and logging.

Goals

• Merge features into a cohesive FileTransferServer.

• Provide a clean constructor with sensible defaults.

• Document public methods and calling conventions.

What You’ll Build

• Final class with:

  • Configurable file_path, save_dir, direction (download/upload/both).

  • limit, encoded mode, randomized route, port.

  • Optional HTML landing page.

  • on_transfer callback, start()/stop(), __repr__.

  • Logging wired throughout.

Sections

• Constructor Design: Parameters, defaults, trade-offs.

• Route Wiring: Conditional registration by direction.

• Lifecycle: Start thread, shutdown watcher, admin endpoint.

• Error Semantics: 400/404/410; when and why.

• Security/Hygiene: Bind addresses, exposure window, directory traversal, input sizes.

• Operational Recipes: Common patterns (single delivery server; exfil sink; upload receiver).

• Milestone: End-to-end test: start → transfer → auto-shutdown → review logs/artifacts.

Exercises

• Run with direction=both and exercise all endpoints.

• Swap random route length; verify it in logs and via curl.

• Integrate into a PoC skeleton and document the exact steps.